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  • Thumbnail for Joseph Petzval
    Joseph Petzval (6 January 1807 – 17 September 1891) was a mathematician, inventor, and physicist best known for his work in optics. He was born in the...
    25 KB (3,178 words) - 21:45, 1 May 2024
  • Thumbnail for Optical aberration
    I'. These degrees, named by J. Petzval the numerical orders of the image, are consequently only odd powers; the condition for the formation of an image...
    58 KB (8,720 words) - 21:14, 7 August 2024
  • Thumbnail for Daguerreotype
    miniatures, was in use for about two years before it was replaced by Petzval's Portrait lens, which gave larger and sharper images. Antoine Claudet had...
    111 KB (12,759 words) - 16:22, 19 August 2024
  • Thumbnail for Chromatic aberration
    D-line (589.2 nm) are f1 and f2, then best correction occurs for the condition: f 1 ⋅ V 1 + f 2 ⋅ V 2 = 0 {\displaystyle f_{1}\cdot V_{1}+f_{2}\cdot...
    21 KB (2,505 words) - 05:55, 16 August 2024
  • Thumbnail for Carl Zeiss
    produced telescope objectives by calculation in 1819, and Josef Maximilian Petzval had done the same for the camera objective in Vienna with Johann Friedrich...
    35 KB (4,953 words) - 08:15, 20 August 2024
  • Thumbnail for CORONA (satellite)
    length. Beginning with the KH-4 satellites, these lenses were replaced with Petzval f/3.5 lens. The lenses were panoramic, and moved through a 70° arc perpendicular...
    81 KB (5,885 words) - 21:40, 10 May 2024
  • Thumbnail for Soft focus
    SMC Pentax-FA 85mm f/2.8 SOFT (PK) SMC Pentax 67 Soft 120mm f/3.5 (P67) Petzval portrait (4×5+) Seibold Dreamagon 90mm f/4 Sima Soft Focus 100mm f/2 (T)...
    37 KB (3,272 words) - 19:35, 9 September 2024